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Thread: XFX 550 TS and PRO, Haswell ready

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    Default XFX 550 TS and PRO, Haswell ready

    Hi all!

    My first post here but i have been reading JonnyGuru reviews and forum for years.

    I have 2 computers, with XFX 550w TS p1-550s-xxb9 and older 550w PRO but with same part number p1-550s-xxb9.

    First information on forums were that these units are not Haswell ready. Info come from XFX supposedly.

    I recently upgraded both systems to Haswell.

    Everything works, even with C7 enabled in UEFI. No bsod, tried sleep mode also.

    Xfx states that p1-550s-xxb9 is Haswell ready on their web site. But, in specification there is this information:Max +12V Output Current (A) : 45

    My PSU boxes are Max +12V Output Current (A) : 44
    No Haswell ready stickers (they are 1 and 2 years old)

    Did they changed something or are both of my PSUs Haswell ready or are they working just because there is more load on 12v rail from other components other then CPUs?

    Should I keep using computers with C7 and dont worry?



    Older 450 PRO (there is no 550 in archive) they also said its Haswell ready

    http://www.xfxforce.com/en-gb/produc...u-p1-450s-xxb9


    Link to current 550 TS
    http://www.xfxforce.com/en-gb/produc...u-p1-550s-xxb9
    Last edited by okultis; 05-02-2015 at 07:14 PM. Reason: shortened text to be more concise

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    The pro seems to be (from what I've heard) based on the Seasonic S12II platform. That platform is group regulated, and therefore doesn't like crossloads too much. From what I've seen, it handles crossloads towards 12V fine, but away from 12V is not quite as good. It's probably okay, but I would turn C7 off on that box, if I was you.

    The TS, on the other hand, seems to be a DC-DC type judging by what I've found (more or less limited to a picture of the insides). It will be fine.

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    Yup. The Pro is S21II Bronze based, and is therefore group regulated. The TS is S12G based, and is therefore DC-DC and thus independently regulated.
    No wonder it doesn't work! You installed the coils backwards

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    Quote Originally Posted by c_hegge View Post
    Yup. The Pro is S21II Bronze based
    Heh, I think a 210mm fan would be a *little* large for a power supply...

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    45A on XFX's website (fairly useless website IMO) is a misprint. On the label on the unit it says 44A; so they are the same PSU.

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    Quote Originally Posted by cheapie View Post
    Heh, I think a 210mm fan would be a *little* large for a power supply...
    Hehe. Yeah. I meant S12II. Although, I don't think that the 12 is a reference to the fan size. I'm pretty sure that there were S12II models (or at least PSUs based on that platform) which had 80mm fans.
    No wonder it doesn't work! You installed the coils backwards

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    Quote Originally Posted by cheapie View Post
    It's probably okay, but I would turn C7 off on that box, if I was you.
    What could be the worst case scenario, according to you?
    Best, Luca

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    Weird thing is that they have 450 PRO which is the same as 550 PRO (i put a link in my first post) as Haswell ready. Yeah, i have read that its S12II and that is an older platform in review here (and everywhere else). I asked XFX support last year and they said that they 'think all of their PSUs are Haswewll ready'. Yesterday i sent them another ticket, i ll post answer here. I also wonder about worst case scenario. I always thought that PRO and TS are the same, they have same Part number.

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    The TS, on the other hand, seems to be a DC-DC type judging by what I've found (more or less limited to a picture of the insides). It will be fine.
    The TS is S12G based, and is therefore DC-DC and thus independently regulated.
    You are referring to TS Gold, OP has linked TS Bronze. Bronze one has group regulated 12V/5V with VRM for +3,3V IIRC. There's been a review from some Asian site posted on this forum a while ago, but can't find it now.

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    Yes, your TS is still the same as the Pro. (I think they only changed the cables besides the branding)

    There are two 550W TS units: an 80+ Bronze one ending with XXB9 like the Pro, and an 80+ Gold one ending in TS3X.
    The first one - your one - is based on the group regulated S12II Bronze, and only the second one is based on S12G like cheapie and c_hegge say.

    Edit: Rafal, XFX only uses the new Seasonic's platform with +3.3V VRM for their 430W unit and their upcoming 300W-350W units, the bronze 550W TS stays on the old S12II Bronze. More details here: http://www.orionpsudb.com/news/seaso...hydance-follow - Hydance uses it too.

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